Are there risks associated with using vitamin b3 niacin ?

Vitamin B3 supplements can worsen conditions such as high blood pressure, ulcers, diabetes, and gout. And large amounts of nicotinic acid can cause skin rash and an intense flushing of the face and neck known as the niacin flush. A slow release form of vitamin b3 or niacin can also cause liver malfunction. Anyone embarking on a treatment program that includes megadoses of niacin should do so under the supervision of a physician












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